/*
 * decompress.c
 *
 * Detect the decompression method based on magic number
 */

#include <linux/decompress/generic.h>

#include <linux/decompress/bunzip2.h>
#include <linux/decompress/unlzma.h>
#include <linux/decompress/unxz.h>
#include <linux/decompress/inflate.h>
#include <linux/decompress/unlzo.h>
#include <linux/decompress/unlz4.h>

#include <linux/types.h>
#include <linux/string.h>
#include <linux/init.h>
#include <linux/printk.h>

#ifndef CONFIG_DECOMPRESS_GZIP
# define gunzip NULL
#endif
#ifndef CONFIG_DECOMPRESS_BZIP2
# define bunzip2 NULL
#endif
#ifndef CONFIG_DECOMPRESS_LZMA
# define unlzma NULL
#endif
#ifndef CONFIG_DECOMPRESS_XZ
# define unxz NULL
#endif
#ifndef CONFIG_DECOMPRESS_LZO
# define unlzo NULL
#endif
#ifndef CONFIG_DECOMPRESS_LZ4
# define unlz4 NULL
#endif

struct compress_format {
	unsigned char magic[2];
	const char *name;
	decompress_fn decompressor;
};

static const struct compress_format compressed_formats[] __initconst = {
	{ {0x1f, 0x8b}, "gzip", gunzip },
	{ {0x1f, 0x9e}, "gzip", gunzip },
	{ {0x42, 0x5a}, "bzip2", bunzip2 },
	{ {0x5d, 0x00}, "lzma", unlzma },
	{ {0xfd, 0x37}, "xz", unxz },
	{ {0x89, 0x4c}, "lzo", unlzo },
	{ {0x02, 0x21}, "lz4", unlz4 },
	{ {0, 0}, NULL, NULL }
};

decompress_fn __init decompress_method(const unsigned char *inbuf, long len,
				const char **name)
{
	const struct compress_format *cf;

	if (len < 2) {
		if (name)
			*name = NULL;
		return NULL;	/* Need at least this much... */
	}

	pr_debug("Compressed data magic: %#.2x %#.2x\n", inbuf[0], inbuf[1]);

	for (cf = compressed_formats; cf->name; cf++) {
		if (!memcmp(inbuf, cf->magic, 2))
			break;

	}
	if (name)
		*name = cf->name;
	return cf->decompressor;
}
/cgit.cgi/linux/net-next.git/log/include/clocksource/pxa.h'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/include/clocksource/pxa.h?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/include/clocksource/pxa.h?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/include/clocksource/pxa.h?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include/clocksource/pxa.h'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/clocksource?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>clocksource</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/clocksource/pxa.h?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>pxa.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Giovanni Cabiddu &lt;giovanni.cabiddu@intel.com&gt;</td><td class='right'>2016-12-22 15:00:12 +0000</td></tr>
<tr><th>committer</th><td>Herbert Xu &lt;herbert@gondor.apana.org.au&gt;</td><td class='right'>2017-02-02 21:54:52 +0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/clocksource/pxa.h?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>3484ecbe0e9deb94afb0b9b6172d77e98eb72b94</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/clocksource/pxa.h?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>4d4be0d20d4946c51ef47a882d78c9934a219c0e</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/clocksource/pxa.h?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>include/clocksource/pxa.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/clocksource/pxa.h?id=11e3b725cfc282efe9d4a354153e99d86a16af08'>11e3b725cfc282efe9d4a354153e99d86a16af08</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/clocksource/pxa.h?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94&amp;id2=11e3b725cfc282efe9d4a354153e99d86a16af08'>diff</a>)</td></tr></table>
<div class='commit-subject'>crypto: qat - fix bar discovery for c62x</div><div class='commit-msg'>Some accelerators of the c62x series have only two bars.
This patch skips BAR0 if the accelerator does not have it.

Cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: Giovanni Cabiddu &lt;giovanni.cabiddu@intel.com&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>Diffstat</a> (limited to 'include/clocksource/pxa.h')</div><table summary='diffstat' class='diffstat'>appears to be a typo.

Sample usage:

tc qdisc add dev eth0 ingress
tc filter add dev eth0 protocol ipv6 parent ffff: flower \
	indev eth0 ip_proto icmpv6 type 128 code 0 action drop

Without this change the code parameter above is effectively ignored.

Fixes: 7b684884fbfa ("net/sched: cls_flower: Support matching on ICMP type and code")
Signed-off-by: Simon Horman &lt;simon.horman@netronome.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=040587af31228d82c52267f717c9fcdb65f36335'>Diffstat</a> (limited to 'tools/perf/tests')</div><table summary='diffstat' class='diffstat'>